Centrifugal, turbine, or similar pump.



I W. R. WILSON. GENTRIFUGAL, TURBINE, QR SIMILAR PUMP.

.APPLIOATION FILBD OOT 23, 1911.

1,094,181, Pagan-ted Apr. 21, 191A UNITED STATES PATENT OFFICE.

WILLIAM R. WILSON, 0F YONKERS, NEW YORK, ASSIGNOR TO ALBERGER CONDENSER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.-

CENTRIFUGAL, TURBINE, ORTSIMILAR, PUMP.

\ Specification of Letters Patent.

7 Application filed October 23, 1911. Serial No. 656,279.

,1 b all whom it may concern:

' Be it known that I, WILLIAM R. VVILsoN, a citizen ofthe United States, residing at Yonkers, in the county of W'estchester and State of New York, have invented certain new and useful Improvements in Centrifugal, Turbine, or Similar Pumps, of which the following is a specification, reference being had therein to the accompanying drawing.

My present invention relates to certain new and useful improvements in centrifugal, turbine or similar pumps, and concerns especially the pumping of air and the produc-' tion of a vacuum.

The invention consists essentially. of a be a succession of air pistons and water pis,

tons, so to speak, which will bedrive-n by centrifugal force outwardly into the casing of the pump, the dischargejbeing made to the atmosphere through the discharge of the pump, against atmospheric or higher pressure.

whereby the water is acted upon centrifugal force before it is projected into'the channels between the blades of the impellers,

'sothat the invention includes means for giving the Water a centrifugal flow, which is interrupted so that the jets thereof, as they enter the spaces between the blades of the impeller, are broken and are not continuous, there being furnished in' this way an opportunity for the air to enter between the broken portions of the jetyand, as soon as the air is carried into the impeller it, as well as the water, is acted upon centrifugally, and the mixture is discharged into the casing of the pump against atmospheric or higher pressure.

'The invention also comprises'numerous details and peculiarities in the. construction, arrangement and combinationof the various parts, substantially as will be hereinafter described and claimed. 4

In the accompanying drawing illustrating my invention, Figure 1 is across-section of my improved centl .fugal, turbine or similar pump. Fig. 2 is a longitudinal section of power (not shown). The invention also comprises means the same taken at right angles to the section of Fig; 1. Fig.3 is a section similar-to that of Fig. 2, on a diminished scale, of a modified form of the nozzles that deliver PatentedA pr. 21, 1914:. I

the water to the channels of the. impeller.

. Similar characters of reference designate corresponding parts throughout the diflerent figures of the drawing.

'1 designatcs'the casing of a centrifugal pump, which isof the usual form, andis provided with a dischargeopening 2 to the atmosphere, through w-hich'the mixture of air and water from the impeller finds exit against atmosphericor higher pressure. In the casing 1 is an impeller 3 of the closed type, having vanes or blades 4:, which are there may be channelsor passages 5 between every pair of consecutive'jhnes. Said vanes .or blades 4 1n the part-icnl'arexample indi cated in the drawing, are shown as provid-v ing a sort of a double conical channel, It must be understood, however, that I am not restricted to a channel of this form, for the vanes or blades can be shaped or arranged in any desired manner. The "impeller 3 is mounted on' a shaft 6 supported ina bearing 7- on the side of the casing 1. This shaft is driven by means of some outside 10 designates a water supply pipe-leading from any suitable source.- Its inner end,

- arranged in a'series, asseen in Fig. 2 so that which inside ofthe body of the impeller 3, is closed and is provided with a series of openings 11 arranged around said end for the purpose of intermittently supplying water to an encircling series of nozzles 12,

of which there may be any number. These nozzles 12 are simply short conical, tubular parts, and are carried by the impeller 3,.being prefe-rablv, cast integral therewith, although they may be attached thereto in any desired manner. Obviously, when firmly attached to the impeller they rotate therewith. They are so arranged as to be directly opposite to the inner ends or mouths ofthe impeller channels 5 and, hence, are situated so as to project their water, which is receiveot'into them.from the pipe 10, through the openings ll'jinto the impeller channels Between the ends of the .nozzles 12 and the channels 5 there is an intervening space of greateror less size,"which exists within or communicates with an air chamber 8 having an inlet 9, through which air is admitted into chamber 8 from a condenser or any other receptacle from which it may be desired'to exhaust air.

In Fig. 2 the openings 11 in the pipe 10 are so arranged that three nozzles 12 at a time are shut off from their supply of water, while three nozzles are also being given their supply of water, there being, in this example of the invention, sixof the nozzles 12 and only three of the outlet-ports 11.

In Fig. 3" instead of having six nozzles 12 I have indicated eight nozzles 13, which are the same in structure and arrangement as the nozzles 12; but here in the pipe 10 I have shown two openings 14, which are larger than the openings 11, and each opening letis in communication with two contiguous nozzles 13. This arrangement of having two nozzles in communication with a Single water port 14 prevents stoppage in the flow of water and insures a quiet operation and a continuous flow through the inlet pipe 10.

By the arrangement which I have just described it will be seen that the water, after being delivered from the water supply pipe 10 to the series ofrotating nozzles, is given by the latter nozzles a centrifugal movement before it is projected into the channels 5 of the impeller. There is a break in the jets of water, therefore, as they pass from the nozzles to the channels 5, this break being caused by the shutting off of the water supply to the nozzles, which occurs when ever a nozzle passes out of communication with one of the water ports in the water supply pipe. This break in the jets that are flowing to the impeller channels affords an opportunity for the air in chamber 8 to enter between the broken portions of the water jet. The consequence is that in each of the channels 5 there is a succession of water pistons and of intermediate volumes of air, the volumes of air alternating with the water pistons andthe series passing in a train thrown outwardly by centrifugal force,

and being delivered into the casing and out through the discharge opening against atmospheric pressure.

One advantage to be mentioned which this invention has is that the water supply may be under practically no head or pressure and the force necessary is applied to it by that portion of the impeller that carries the nozzles. l

IVhentl e nozzles are carried by the imm11-er-,'-the pumping by the nozzles and that by the impeller will be of like speed. I do not wish, however, to be restricted to supporting tlte nozzles on the impeller. The initial centrifugal movement given to the water may be imparted by means entirely separate from and independent of the inspeller;-in which case there will be virtually t a mechanism consisting of two impellers rptated at different speeds, though in some,

cases there might be a plurality of impellers running at the same speed. In a case where two impellers are used rotating at different speeds, the same intermittent supply of water would be obtained and the same rupturing of the continuity of thewater jets would take place, to permit the commingling of the air so that the mixed air and water would be thrown out centrifugally in the same way. Butin this latter example the stationary pipe with its lateral ports. could be dispensed with. An identical result, therefore, would be obtained by two separate impellers as that in the construction shown in the drawing.

A feature of my invention is, obviously, thepumping of the water centrifugally before it comes in contact with the air and then the pumping of the air and Water together by means of the same impeller, but the broad principle is that of alternate air and water pistons in the radial channels of the impeller.

It is obvious, moreover, that many changes may be made in the embodiment of the present invention Without exceeding the therefore, of changing the mechanical features in so far as such change may be found desirable and necessary to accomplish the best -results in actual practice.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is v 1. In a centrifugal, turbine, or similar pump, the combination with an impeller, of

motion to the water before it comes into contact with the air, and means for intermittently supplying volumes or plugs of water to the impeller, and entrapping the air between said volumes or plugs of water.

2. In a centrifugal or like pump, the combination with an impeller having a series of channels, of a water supply, an air suction,

motion to the water before it comes in contact with the air, and means for cutting off the water supply at intervals from the channels of the impeller to permit the air suction to be connected with the channels during those intervals.

$23. In a centrifugal, turbine, or similar pump, the combination with an impeller having a series of channels, of means for intermittently supplyin plugs or volumesof water to said channe s and entrapping air between said volumes or plugs of water, and means for causing the said intermittent supply of water to partake of an initial centrifugal motion before it is brought intocontact with the air.

4. In a centrifugal, turbine or similar Ypump, the combination with an impeller, of means fir intermittently supplying volscope of the claims, and I reserve the liberty,

means for imparting an initial centrifugal means. for imparting an initial centrifugal times or plugs of water to said impellervand entrapping. air between said volumes or plugs of water, said means imparting an initial centrifugal motion to the water before it comes into contact with the air. v I

5. In a centrifugal or like pump, the combination with anim'peller' having a series of channels, of means'for intermittently supplying water to said channels and entraping air between the plugs of water, sald means imparting an initial centrifugalmotion to the water before the water entraps the air.

6. In a centrifugal ornke ump, the tom.

animpeller, of an air sucbination with tion and a water suction, and-means for intermittently introducing water-into the'impeller and entrapping air therewith, said means imparting an initial centrifugal mo tion to'the water before it entraps the air.

7. In a centrifugal or like pump,the\combination with; an impeller, of an air-suction and a water suction, and means for. intermittently introducing plugs of water into the impeller together with intermedi-' ate volumes of air, said means consisting ofa series of rotating nozzles.

8. In a centrifugal or like pump, the-com bination with an Impeller having a series of channels, of means for introducing water to the inner ends of said channels interniittently, said means consisting of a series of rotati nozzles which deliver into the said channe s, to ether with means for permitting air to e drawn into the channels between the introduction of the jets of water.

9. Ina centrifugal or like pump, the combination with a rotary impeller having a series of channels, of an air suction and .a water supply, and means for intermittently introducing plugs of water to the channels and p ae cl means conslsting of a series of rotary nozentrapping air between. said zles which deliver water into the channels, air being entraplped by said channels during the interva s when the nozzles temporaril cease to deliver.-

10. Iii

copies of this patent may be obtained for in cents each, by addressing the combination With water supply,

a centrifugal or "like pump, the

a rotary impeller having a series'of channels, of an air-suction and a and means for intermittentl; introducing-plugs of water into the channels and entrapping air between said pings, said means consist-mg of a series of rotary nozzles which deliverwater into the channels, air being entrapped by said channels during the intervals when the nozzles ten]- porarily cease to deliver,.said-nozzles being carried by the impeller and rotating at the same speed.

1-1. In a centrifugal or like pump, the combination with a rotary impeller having a series ofchannels, of a Water inlet having a series of outlets, a series of nozzles revolving around said series of outlets and coming into coincidence therewith, said nozzles rojecting the water into the inner ends of t e channels intermittently, and means for-allowing air to enter the channels of the impeller at the times when the water is not bein introduced, whereby each channel is 5 with a succession of Water plugs and alternate-quantities of air. 7

12; a centrifugal, turbine or similar ump, the combination with an impeller aving a seriesof channels, and carrying also a series of nozzles arranged to deliver into said channels, there being a space intervening between the nozzles and the channels, an air suction communicating with the inner ends of said channels, and means for supplying waterto the nozzles and cutting oil the supply at-intervals, so that the jets of water'v'thich issue from the nozzles may be intermittently broken to permit'the air suction to be connected with the channels during those intervals, whereby each channel is filled with a succession of water plugs and air pistons. In testimon whereof I afix my signature in presence 0 two witnesses.

WIILIAM n. wiLson.

Commissioner Patents.

Washington, D. 0. 

